104 BIOLOGICAL SOCIETY OF WASHINGTON. 



treatises under eight categories, viz : (i) Accessories and Generals; (2) Genera 

 Entomology; (3) Special Entomology, i. <?., the subordinate groups, orders, etc. 

 (4) Anatomy; (5) Physiology; (6) Biology; (7) Benefits from Insects; and (8) 

 Injuries from Insects. This summary will give some idea of what entomologists 

 intend by the word, and the original sense of the word, as indicated by Plato in 

 the connection already indicated, might be used as an argument in justification. 

 There would, indeed, be no strong objection to the use of the word to signify a 

 study of habits had it not been abready, by general consent, used in another 

 sense. Our well considered rules, as well in zoology as in botany, that priority 

 determines the use of a name, and that the same name cannot be well used in two 

 different senses, combine with the universal consecration of the term otherwise, to 

 forbid us to use it in the limited sense indicated. 



